how to save multiple images with different names?

16 views (last 30 days)
romasha
romasha on 4 Feb 2014
Commented: Image Analyst on 5 Feb 2014
hi, In my gui i take an image as a user input and do some processes over it like cropping , normalization and feature extraction now i want feature extracted image to be saved in matlab folder i write code but it saves only one image whereas i want every image like user select image from folder and after processed this image feature extracted image got save and then when user re run the gui and select another image then this feature extracted image save with another name i've tried this.... Code
subplot(pics,columns,subplt); featureEx=imshow(temp{i1});
filename = sprintf('FeatureExtrctd_image%d.bmp', i1);
imwrite(featureEx,filename,'bmp');
title('Feature Extracted image');
subplt=subplt+1;
...............
where i1=1 cause user only select one image at a time so there is no need for iterations
  1 Comment
Walter Roberson
Walter Roberson on 5 Feb 2014
Could you explain further what you mean by "every image like user select image from folder" ?

Sign in to comment.

Answers (2)

Amit
Amit on 5 Feb 2014
Edited: Amit on 5 Feb 2014
I think one way to do this will by using an identifier taken from the original file name. Otherwise
filename = sprintf('FeatureExtrctd_image%d.bmp', i1);
will always try to save as FeatureExtrctd ......
Lets say your file name is 'myfile.jpg'
[~,X_filename,~] = fileparts('myfile.jpg'); % user selected file
filename = sprintf('FeatureExtrctd_image%d.bmp', i1);
filename_new = [X_filename '_' filename];

Image Analyst
Image Analyst on 5 Feb 2014
You can do that with trivial modifications to the code in the FAQ: http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F Let us know if you can't figure it out and we'll help. If you want the user to select an image at every iteration, you'll have to put this code into the loop:
% Get the name of the file that the user wants to save.
% Note, if you're saving an image you can use imsave() instead of uiputfile().
startingFolder = userpath
defaultFileName = fullfile(startingFolder, '*.*');
[baseFileName, folder] = uiputfile(defaultFileName, 'Specify a file');
if baseFileName == 0
% User clicked the Cancel button.
break;
end
fullFileName = fullfile(folder, baseFileName)
  2 Comments
Image Analyst
Image Analyst on 5 Feb 2014
Not exactly sure, but I think using uigetfile and uiputfile are what you need.

Sign in to comment.

Tags

Products

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!